int light = 1; //Defines light mode variable and resets value

void setup() {
  // put your setup code here, to run once:
 pinMode(5, OUTPUT); //sets output to control red
 pinMode(3, OUTPUT); //sets output to control green
 pinMode(4, OUTPUT); //sets output to control blue
 pinMode(6, INPUT); //sets input pin for UI
 Serial.begin(9600); // opens the serial port at 9600 bps:
 Serial.print("Debug channel started"); //notify's tec that connection was established
 Serial.print('\n'); //creates new line
 Serial.print("Light mode  "); //Adds label
 Serial.print(light); //prints the mode value
}

void loop() {
  // put your main code here, to run repeatedly:
if (light == 1) {
  White(); //sets light color to white
}

if (light == 2) {
  digitalWrite(5, LOW);
}

if (light == 3) {
  digitalWrite(3, LOW);
}

if (light == 4) {
  digitalWrite(4, LOW);
}

if (light == 5) {
  digitalWrite(5, LOW); //sets light to red
  delay(550);
  reset(); //resets light color
  digitalWrite(3, LOW); //sets light to green
  delay(550);
  reset(); //resets light color
  digitalWrite(4, LOW); //sets light to blue
  delay(550);
}

if (light == 6) {
  delay(550);
  digitalWrite(5, LOW); //sets light to red
  delay(550);
  reset(); //resets light color
  delay(550);
  digitalWrite(3, LOW); //sets light to green
  delay(550);
  reset(); //resets light color
  delay(550);
  digitalWrite(4, LOW); //sets light to blue
  delay(550);
}

if (light == 7) {
  digitalWrite(5, LOW);
  delay(550);
  reset();
  delay(550);
}

//mode 8 is free and can be defined
//mode 9 is free and can be defined

CheckButton(); //checks if button is pressed

reset(); //resets light color
}

void White() {
  //Sets light color to white
  digitalWrite(5, LOW);
  digitalWrite(3, LOW);
  digitalWrite(4, LOW);
}

void reset() {
  //Resets pins to turn lights off
  digitalWrite(5, HIGH);
  digitalWrite(3, HIGH);
  digitalWrite(4, HIGH);
}

void CheckButton() { 
  //checks if button is pressed
  if (digitalRead(6) == HIGH) { //checks if button is pressed
  while(digitalRead(6) == HIGH) { //repeats code until button is released
    delay(20); //Delays
}
  if (light == 9) { //if light = 9 then ligth gets set to 1 else light is changed by 1
    light = 1;
  } else {
    light = light + 1;
  }
  Serial.print('\n'); //creates new line
  Serial.print("Light mode  "); //Adds label
  Serial.print(light); //prints the mode value
}
}